Waka poems were a popular art form in the Heian period, enough that the famous poet Fujiwara no Sadaie and Emperor Go-Toba sought to put together a selected collection of chosen verses.
I have learned to both love 
and hate my fellow man
he aprendido tanto a amar
como a odiar al prójimo.
Eu conheci tanto o amor quanto o ódio, meu caro